North Korean Hackers Steal $1.5B in Cryptocurrency

It looks like a very sophisticated attack against the Dubai-based exchange Bybit: Bybit officials disclosed the theft of more than 400,000 ethereum and staked ethereum coins just hours after it occurred. The notification said the digital loot had been stored in a "Multisig Cold Wallet" when,...

Bybit Confirms Record-Breaking $1.5 Billion Crypto Heist in Sophisticated Cold Wallet Attack

Cryptocurrency exchange Bybit on Friday revealed that a "sophisticated" attack led to the theft of over $1.5 billion worth of cryptocurrency from one of its Ethereum cold offline wallets, making it the largest ever single crypto heist in history. "The incident occurred when our ETH multisig cold...

Holder cannot claim fee

Lines of code Vulnerability details Impact Assume a user buys some shares and mints it to an NFT and sends the shares to a cold wallet for safety. The following happens: A user buys 10 shares using buy is called, the rewardsLastClaimedValue is updated to the latest holder rewards, the...